Hastelloy X alloy is a high-strength, high-temperature oxidation-resistant alloy composed mainly of nickel, chromium, molybdenum, and iron. It is one of the Hastelloy family of alloys and is widely used in aerospace, chemical, energy, and petroleum industries where high temperature, corrosion, and wear resistance are critical. In today’s article, we will introduce all about Hastelloy X alloy: composition, properties, and applications.

All About Hastelloy X Alloy: Composition, Properties, and Applications
All About Hastelloy X Alloy: Composition, Properties, and Applications

All About Hastelloy X Alloy: Composition, Properties, and Applications

All About Hastelloy X Alloy – 1. Composition:

The chemical composition of Hastelloy X alloy includes approximately 47.5% nickel, 22% chromium, 9% molybdenum, and 18.5% iron. The addition of these elements gives Hastelloy X excellent oxidation resistance and high-temperature corrosion resistance, allowing it to withstand oxidation and thermal corrosion in high-temperature environments up to 1100°C.

In addition, Hastelloy X alloy also has good processing performance and weldability, and can be processed using various methods such as forging, rolling, and drawing. It also has excellent oxidation and corrosion resistance, and performs well in chemical corrosion and high-temperature oxidation environments.

All About Hastelloy X Alloy – 2. Properties:

Hastelloy X alloy has excellent physical and chemical properties. The following are the main properties of the alloy:

  1. Density: The density of Hastelloy X alloy is 8.22 g/cm³.
  2. Strength: Hastelloy X alloy has excellent high-temperature strength and high strength, with a tensile strength of up to 950 MPa.
  3. Thermal expansion coefficient: The thermal expansion coefficient of Hastelloy X alloy is 13.1 × 10^-6/℃, which is lower than most metal materials.
  4. Thermal conductivity: The thermal conductivity of Hastelloy X alloy is 11.2 W/m·K, which has good thermal conductivity properties at high temperatures.
  5. Melting point: The melting point of Hastelloy X alloy is 1285℃, and its high melting point makes it have good stability in high-temperature environments.
  6. Corrosion resistance: Hastelloy X alloy has excellent corrosion resistance at high temperatures and can withstand the erosion of most corrosive media such as acids, alkalis, and oxides, making it particularly suitable for seawater corrosion environments.
  7. Antioxidant property: Hastelloy X alloy has excellent antioxidant properties at high temperatures, capable of withstanding oxidation and thermal corrosion up to 1100°C, maintaining material stability.
  8. Wear resistance: Hastelloy X alloy has high hardness and wear resistance, making it suitable for use in wear environments where high-speed rotating components are subjected to wear.

All About Hastelloy X Alloy – 3. Applications:

Hastelloy X alloy has excellent high temperature, high pressure, corrosion resistance, and wear resistance properties, and has been widely used in various industrial fields. Here are some typical applications of Hastelloy X alloy:

  1. Aerospace: Hastelloy X alloy is used in the aerospace industry to manufacture high-temperature engine and turbine blades, jet engines, and gas turbines.
  2. Chemical industry: Hastelloy X alloy is used in the chemical industry to manufacture reactors, distillation towers, pipelines, valves, and pumps, among other equipment, for the treatment of corrosive media such as acids, alkalis, oxides, and salts.
  3. Energy field: Hastelloy X alloy is used in the energy field to manufacture high-temperature equipment such as gas turbines, fuel cladding for nuclear reactors, heaters, heat exchangers, furnaces, etc.
  4. Petroleum field: Hastelloy X alloy is used in the petroleum field to manufacture equipment and pipelines on drilling platforms, which are used to withstand high temperatures, high pressures, and corrosive media.

All About Hastelloy X Alloy – 4. Variety and Specification:
There are many varieties and specifications of Hastelloy X alloy. According to specific application fields and processing requirements, various shapes and sizes of materials can be provided, including:

  1. Pipe: external diameter from 6mm to 219mm, wall thickness from 0.5mm to 20mm, length customized according to customer requirements.
  2. Plate: thickness ranging from 0.3mm to 60mm, width ranging from 1000mm to 2000mm, length ranging from 1000mm to 6000mm.
  3. Wire: Diameters ranging from 0.1mm to 10mm, length customized according to customer requirements.

All About Hastelloy X Alloy – 5. Supply Status:

The supply status of Hastelloy X alloy includes the following:

  1. Hot-rolled (R): refers to the state of material after hot rolling at high temperatures, with good processing performance and plasticity.
  2. Cold-rolled state (Y): refers to the state of the material after cold rolling at room temperature, with high strength and hardness.
  3. Solid solution annealed state (M): refers to the state of a material after solid solution annealing at high temperatures, with good plasticity and toughness, suitable for processing into various shapes of components.
  4. Solution-processed hardened state (MY): refers to the state of a material after undergoing solution annealing at high temperatures and then undergoing cold deformation processing, resulting in high strength and hardness, suitable for components that withstand high stress and high load.

More about Hastelloy X Alloy:

Due to the high chemical stability and high-temperature oxidation resistance of Hastelloy X alloy, there are also some special requirements for its production and processing:

  1. High processing difficulty: The high hardness and tensile strength of Hastelloy X alloy make it difficult to process, requiring the use of specialized processes and tools for processing and manufacturing.
  2. Strict welding requirements: The welding requirements for Hastelloy X alloy are very high, requiring strict control of welding temperature and welding speed to avoid weld defects and cracks.
  3. High requirements for cleanliness: Hastelloy X alloy requires high levels of cleanliness during manufacturing to avoid the impact of impurities and oxides on its properties. Therefore, a series of strict control measures are required during production and processing.

Why Choose Huaxiao Alloy?

Thank you for reading our article and we hope you’ve enjoyed it. If you want to find more information about Hastelloy X alloy, we would advise you to visit Huaxiao Alloy. As a leading supplier of Hastelloy X alloy products across the world, Huaxiao Alloy offers customers high-quality Hastelloy alloy products such as Hastelloy X alloy, Hastelloy C4Hastelloy C-276, and Hastelloy C22 at a very competitive price.

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